How to tell if firewall is for 32 or 64 bit

How do I tell if the CIS firewall - i only have firewall- is for 32 bit or 64 bit win 7? Would 32 on a 64 bit pc cause conflict/ slow it down/ cause non responding etc?

Hi David,

The installer detects the correct OS version and installs the 32/64-bit version correspondingly.

OK Ronny thanks